So you think that this is related to the PGE handling you mention
in the advisory?
In any case I have looked at the new kernel source - it is missing two small
Patches that were included in the 7.3 2.4.18 series. Both are very important for
our newer machines. I'll atttach them here although they are not directly
related to the problem itself.
Arjan, please have a look at them.
Concerning the original problem - we'll test the new kernel and see what happens.
Martin

I hope you do because that is really a nasty one if you have >4GB machines (we
had an Adaptec SCSI controller happily DMA'ing to and from the kernel core
memory). Meanwhile, we'll advise our >4GB customers to upgrade to the 7.3 kernel.
The CSB5-Patch may seem ridiculous - however, IDE load may cause such a heavy
interrupt load that timer and local APIC interrupts don't get through, causing
the LOC interupt counts to differ heavily, and (if the same CPU servers timer
and IDE IRQs) cause system time to go awry.